Stove-pipe-fitting tool



(No Model.)

B. D. FISHER. STOVE PIPE FITTING TOOL.

N0..450,910. Patented Apr. 21,1891.

INVENTOR ATTORNEYS W/T/VESSES:

UNITED STATES PATENT OFFICE.

- ELLIOTT D. FISHER, OF FRANKLINVILLE, NEIV YORK.

STOVE-PlPE-FITTI'NG TOOL.

SPECIFICATION forming part of Letters Patent No. 450,910, dated April21, 1891.

Application filed August 9, 1890. Serial No. 361,598. (No model.)

T0 on whom it may concern:

, Be it known that I, ELLIOTT D. FISHER, of Franklinville, in the countyof Oattaraugus and State of New York, have invented a new and usefulStovePipe-Fitting Tool, of which the following is a full, clear, andexact description.

The object of this invention is to provide in one compact and simpleimplement a ready and efficient means for expanding one end of astove-pipe joint and correspondingly contracting the end of a similarpipe-joint to adapt them for a sliding connection.

To this end my invention consists in the peculiar construction of theimplement, as is hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 represents the preferred form of the device and its method ofapplication to expand and contract the ends of stove-pipe sections. Fig.2 is a slightly-changed form for the device. Fig. 3 is anothermodification, and Fig. i is a view of an ordinary cone-frustum on whichmy construction is an improvement.

In all the figures the device presented in modified forms has the mainessential feature shown, which consists in making the implement tubularand cone-frustum in form.

In Fig. 1, as presented, the implement consists, essentially, of afrustum A of a hollow cone having a short annular sloping shoulder a ata point which is near the longitudinal center of the implement. From theshoulder a to the smaller end Z) aregular taperis given to the body A,and upon this terminal end an inward-contracting curvature of thematerial is produced, thus adapting this end of the tool to enter theend of a stove-pipe section B and expand the same, if a revoluble motionand longitudinal pressure isapplied to the tool. From the shoulder atoward the opposite terminal end 0 of the tool A the diameter isregularly increased, and at the edge is outwardly curved into aslightly-bell-shaped entrance, wherein the end of a stove-pipe section 0that is equal in diameter to the section B may be introduced, and by aproper manipulation of the tool be slightly crimped, so as to contractthe diameter of this pipe end portion 0' and render it taperingtowardthe shoulder a, which, when internally engaged by the end 0' ofthe pipe-section G, will give the same a short inward bend. In a similarmanner the end a of the pipe-section B, if made to impinge on therevolubly-moving shoulder a on its exterior surface, will be slightlybent outward, and thus adapted to receive the tapered end of the otherpipe-section C.

In Fig. 2 the same form is given the tool A, except that the end 0 isnot flared, the operation of the tool is the same, and if properproportions are maintained between the pipe to bev fitted and thediameter of the tool eificiency in operation will result from use ofthis slightly-altered form of the device.

In Fig. 3 the device has its ends left uncurved, there being the offsetshoulder a, produced on the conical body of the tool, which will removeall irregularities on the edge of the expanded pipe-section and turn inthe edge of the crimped section, so that these sections may be readilyslid together until a tight joint is secured. I The tool shown in Fig. Icannot be as readily inserted into or over the pipe ends and producesflares or contracts said ends to a much greater length than is necessaryand consistent with economy, for with such a long flare a much longerportion of the opposing pipesection must be inserted therein than isnecessary where only the extreme end edges are fiared'or contracted, asthe case may be, by means of the short sloping annular shoulder a of myimplement. Moreover, the joined ends of pipes treated by my implementwill lie almost in the planes of their remaining portions, and a muchneater joint will thus be effected.

It is to be understood that the several sections of a stove-pipe to bejoined are each expanded at one end and crimped at the opposite end, soas to adapt them for a proper connection and formation of an extendedline of pipe.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent- 1. A stove-pipe-fitting tool comprised of ahollow conical body having an annular shoulder formed 011 itslongitudinal center produc ly-sloping shoulder formed on it near itscenter of lengthQan inward curvature produced on the edge of the smallend, and a flaring mouth on the larger end of the tool, substantially asset forth.

ELLIOTT D. FISHER.

Witnesses:

EUGENE E. WHEELER, IRVING W. GOFRAN.

